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java.lang.Objectorg.apache.commons.collections4.map.PassiveExpiringMap.ConstantTimeToLiveExpirationPolicy<K,V>
K
- the type of the keys in the mapV
- the type of the values in the mappublic static class PassiveExpiringMap.ConstantTimeToLiveExpirationPolicy<K,V>
A ExpirationPolicy
that returns a expiration time that is a
constant about of time in the future from the current time.
Constructor Summary | |
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PassiveExpiringMap.ConstantTimeToLiveExpirationPolicy()
Default constructor. |
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PassiveExpiringMap.ConstantTimeToLiveExpirationPolicy(long timeToLiveMillis)
Construct a policy with the given time-to-live constant measured in milliseconds. |
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PassiveExpiringMap.ConstantTimeToLiveExpirationPolicy(long timeToLive,
TimeUnit timeUnit)
Construct a policy with the given time-to-live constant measured in the given time unit of measure. |
Method Summary | |
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long |
expirationTime(K key,
V value)
Determine the expiration time for the given key-value entry. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public PassiveExpiringMap.ConstantTimeToLiveExpirationPolicy()
public PassiveExpiringMap.ConstantTimeToLiveExpirationPolicy(long timeToLiveMillis)
timeToLiveMillis
- the constant amount of time (in milliseconds)
an entry is available before it expires. A negative value
results in entries that NEVER expire. A zero value results in
entries that ALWAYS expire.public PassiveExpiringMap.ConstantTimeToLiveExpirationPolicy(long timeToLive, TimeUnit timeUnit)
timeToLive
- the constant amount of time an entry is available
before it expires. A negative value results in entries that
NEVER expire. A zero value results in entries that ALWAYS
expire.timeUnit
- the unit of time for the timeToLive
parameter, must not be null.
IllegalArgumentException
- if the time unit is null.Method Detail |
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public long expirationTime(K key, V value)
expirationTime
in interface PassiveExpiringMap.ExpirationPolicy<K,V>
key
- the key for the entry (ignored).value
- the value for the entry (ignored).
timeToLiveMillis
≥ 0, an expiration time of
timeToLiveMillis
+
System.currentTimeMillis()
is returned. Otherwise, -1
is returned indicating the entry never expires.
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